Ron Paul to visit Iowa on Oct. 29

The announcement has prompted speculation about whether the 11-term congressman might be preparing for another presidential bid — he was a candidate in 2008 and finished fifth in the Iowa caucuses, but says he still hasn't decided about 2012.

The Daily Caller reported that the organization Americans for Liberty were first to see if he would agree to speak on the campus, which is located in Iowa City. He might also stump for GOP candidates while he's in the state.

Paul won the straw poll at the Conservative Political Action Conference's annual summit in February, but a recent Gallup survey has him trailing former GOP Govs. Mitt Romney (Mass.), Mike Huckabee (Ark.) and Sarah Palin (Alaska) and former House Speaker Newt Gingrich.